Use code ONREPEAT at checkout for 65% off up to $65 on Auto-Refill Orders.

Use code DOGDAY40 at checkout for $40 off your next order over $100.*

*Coupon terms and conditions: code DOGDAY40 applicable for one-time or Subscribe & Save orders, for a limited time. Coupon codes apply to many, but not all, products. Excluded products include but are not limited to Azodyl, Bravecto, Bravecto Plus, Droncit, Incurin, Mometamax, Numelvi, Optimmune, Posatex, Sentinel, Tri-Heart Plus, VetPen, Vetsulin, compounded and refrigerated medications. Promotional code valid through August 23, 2026.

Use code DOGDAY60 at checkout for $60 off your next order over $200.*

*Coupon terms and conditions: code DOGDAY60 applicable for one-time or Subscribe & Save orders, for a limited time. Coupon codes apply to many, but not all, products. Excluded products include but are not limited to Azodyl, Bravecto, Bravecto Plus, Droncit, Incurin, Mometamax, Numelvi, Optimmune, Posatex, Sentinel, Tri-Heart Plus, VetPen, Vetsulin, compounded and refrigerated medications. Promotional code valid through August 23, 2026.

Now Available on Koala: Royal Canin Vet Fresh Frozen Diets! Use code FRESH50 at checkout for 50% off your first Subscribe & Save order.*

*Coupon terms and conditions: code FRESH50 applicable for first-time Subscribe & Save orders only. Coupon code applies to the following products: Royal Canin Appetite Stimulation Fresh Frozen Dog Food, Royal Canin Gastrointestinal Low Fat Fresh Frozen Dog Food, and Royal Canin Selected Protein Pork Recipe Fresh Frozen Dog Food. Promotional code valid through December 31, 2026.

Allergy Relief

Antibiotics

Anxiety, Behavior & Stress

Arthritis, Pain & Joint Health

Dental

Dewormers & Parasiticides

Diabetes & Insulin

Digestive & Gastrointestinal

Ear Care

Eye Care

Flea & Tick

Food

Heart & Blood Pressure

Heartworm

Immune Support

Respiratory Care & Asthma

Seizure & Epilepsy

Skin & Coat

Thyroid & Hormone

Urinary Tract & Kidneys

Vitamins & Supplements

All Cat Food

Dry Food

Treats

Veterinary Diets

Wet Food

All Dog Food

Thyroid and hormone medication for dogs to manage endocrine conditions safely. Trusted treatments at Koala Health.

Thyroid & Hormone Medication for Dogs

thyroid & hormone

Anipryl is an oral tablet prescribed by veterinarians to control the clinical signs of canine cognitive dysfunction syndrome (CDS) and of uncomplicated pituitary-dependent Addison's Disease (PDH).

Anipryl

Dexamethasone is a steroid used to treat immune-mediated and inflammatory conditions.

Dexamethasone

Triamcinolone (Kenalog) is a steroid used to treat inflammatory conditions, especially allergy and skin disorders.

Kenalog

Methylprednisolone is a steroid used to treat inflammatory conditions, especially allergy and skin disorders.

Methylprednisolone

Percorten-V is an injectable prescription medication used to help dogs manage Addison’s disease. 

Percorten V

Prednisone and prednisolone are steroids used to treat a wide variety of dog illnesses including inflammatory conditions, immune-mediated diseases, certain cancers, and Addison's disease (hypoadrenocorticism).

Prednisone

Prednisone and prednisolone (PrednisTabs) are steroids used to treat a wide variety of dog and cat illnesses including inflammatory conditions, immune-mediated diseases, certain cancers, and Addison's disease (hypoadrenocorticism).

PrednisTabs

ProZinc (protamine zinc insulin) is a prescription medication to help support the insulin levels of diabetic cats and dogs.

ProZinc U-40 Insulin

Selegiline is a prescription medication used to treat cognitive dysfunction, senility, and Cushing's disease in dogs.

Selegiline

Temaril-P is an oral medication that treats both coughing and itchiness due to a wide variety of causes.

Temaril-P

Levothyroxine (Thyro-Tabs) supplies thyroid hormone to the body in the case of underactive thyroid glands, also known as hypothyroidism.

Thyro-Tabs

Triamcinolone is a steroid used to treat inflammatory conditions, especially allergy and skin disorders.